Wyoming Snow Precipitation Update
United States Natural Resources Water and Climate Center
Department of Conservation Portland, Oregon
Agriculture Service
S N O W - P R E C I P I T A T I O N U P D A T E
Based on Mountain Data from NRCS SNOTEL Sites
As of THURSDAY: NOVEMBER 6 , 1997
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BASIN ELEV. SNOW WATER EQUIVALENT TOTAL PRECIPITATION
Data Site Name (Ft) % %
Current Average Avg Current Average Avg
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WYOMING
SNAKE RIVER
BASE CAMP 7030 .4 1.2 33* 2.6 2.8 93
COTTONWOOD CREEK 7600 1.1 1.3 85* 3.0 3.0 100
GRANITE CREEK 6770 .2 1.1 18* 2.3 3.1 74
GRASSY LAKE 7265 1.9 2.0 95* 3.9 4.5 87
GROS VENTRE SUMMIT 8775 -M 1.6 * -M 2.1 *
LEWIS LAKE DIVIDE 7860 2.1 2.3 91* 3.7 4.6 80
PHILLIPS BENCH 8200 1.4 1.8 78* 2.5 3.5 71
SALT RIVER SUMMIT 7600 .4 .4 100* 2.3 2.2 105
SNAKE RIVER STATION 6920 -M 1.1 * -M 3.1 *
SPRING CREEK DIVIDE 9000 1.4 2.2 64* 2.2 3.0 73
THUMB DIVIDE 7980 -M 1.0 * -M 2.6 *
TOGWOTEE PASS 9580 3.2 2.9 110 3.2 3.4 94
TWO OCEAN PLATEAU 9360 4.7 4.2 112 4.8 3.8 126
WILLOW CREEK 8450 1.1 2.0 55* 4.3 3.8 113
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Basin wide percent of average 84* 92
UPPER YELLOWSTONE-MADISON
BEARTOOTH LAKE 9275 3.9 3.7 105 3.3 2.4 138
BLACK BEAR 7950 3.8 3.6 106* 4.6 4.6 100
CANYON 7940 1.8 1.1 164* 3.3 2.2 150
FISHER CREEK 9100 5.4 3.5 154* 5.2 4.0 130
MADISON PLATEAU 7750 2.0 2.1 95* 3.3 3.2 103
NORTHEAST ENTRANCE 7350 .1 .6 17* 3.6 1.9 189
PARKER PEAK 9400 3.5 4.3 81 3.5 2.7 130
SYLVAN LAKE 8420 2.7 3.2 84 4.6 3.3 139
THUMB DIVIDE 7980 -M 1.0 * -M 2.6 *
TWO OCEAN PLATEAU 9360 4.7 4.2 112 4.8 3.8 126
WHISKEY CREEK 6800 1.0 1.2 83* 2.6 2.8 93
WHITE MILL 8700 4.9 2.5 196* 5.2 3.5 149
WOLVERINE 7650 .2 .6 33* 2.4 2.0 120
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Basin wide percent of average 111* 127
WIND RIVER
BURROUGHS CREEK 8750 2.1 1.3 162* 2.5 2.2 114
COLD SPRINGS 9630 2.0 1.2 167 2.7 2.2 123
DEER PARK 9700 .0 -M * .0 -M *
HOBBS PARK 10100 2.9 2.7 107 3.2 2.4 133
LITTLE WARM 9620 1.4 1.4 100 2.8 2.3 122
SOUTH PASS 9040 2.5 3.1 81 3.6 2.7 133
ST. LAWRENCE ALT 8620 2.2 1.0 220 2.9 2.1 138
TOGWOTEE PASS 9580 3.2 2.9 110 3.2 3.4 94
TOWNSEND CREEK 8700 1.9 1.3 146 3.4 2.2 155
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Basin wide percent of average 122 125
BIGHORN BASIN
BALD MTN. 9375 4.7 3.2 147 4.4 2.8 157
BEAR TRAP MEADOW 7900 .8 1.0 80 1.6 1.9 84
BLACKWATER 9780 4.5 3.1 145 3.8 2.9 131
BONE SPRINGS DIV 9350 4.0 3.1 129 4.5 2.6 173
EVENING STAR 9200 4.1 4.7 87 5.7 3.6 158
GRAVE SPRINGS 8550 1.3 -M * 2.3 2.2 105
KIRWIN 9550 2.7 1.8 150 3.1 2.0 155
LOST CREEK 8080 -M 1.7 * -M 2.3 *
MARQUETTE 8760 3.9 1.2 325 4.4 2.1 210
MIDDLE POWDER 7760 .9 1.7 53 1.9 2.4 79
OWL CREEK 8975 1.7 .6 283 2.1 1.2 175
POWDER RIVER PASS 9480 1.3 1.6 81 2.2 2.2 100
SHELL CREEK 9580 3.4 2.9 117 2.6 2.3 113
SYLVAN LAKE 8420 2.7 3.2 84 4.6 3.3 139
SYLVAN ROAD 8120 .6 1.9 32 3.4 2.7 126
TIMBER CREEK 7950 2.3 .4 575* 3.2 1.5 213
YOUNTS PEAK 8350 3.0 2.8 107 3.0 2.4 125
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Basin wide percent of average 122 139
SHOSHONE RIVER
BLACKWATER 9780 4.5 3.1 145 3.8 2.9 131
EVENING STAR 9200 4.1 4.7 87 5.7 3.6 158
KIRWIN 9550 2.7 1.8 150 3.1 2.0 155
MARQUETTE 8760 3.9 1.2 325 4.4 2.1 210
SYLVAN LAKE 8420 2.7 3.2 84 4.6 3.3 139
SYLVAN ROAD 8120 .6 1.9 32 3.4 2.7 126
YOUNTS PEAK 8350 3.0 2.8 107 3.0 2.4 125
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Basin wide percent of average 115 147
POWDER-TONGUE
BEAR TRAP MEADOW 7900 .8 1.0 80 1.6 1.9 84
BONE SPRINGS DIV 9350 4.0 3.1 129 4.5 2.6 173
BURGESS JUNCTION 7880 1.5 2.0 75 3.0 2.3 130
CLOUD PEAK RESERVOIR 9860 1.9 1.6 119* 3.9 2.5 156
DOME LAKE 8880 2.6 2.3 113 3.7 2.7 137
GRAVE SPRINGS 8550 1.3 -M * 2.3 2.2 105
HANSEN SAWMILL 8760 1.3 1.0 130 2.3 1.8 128
LOST CREEK 8080 -M 1.7 * -M 2.3 *
MIDDLE POWDER 7760 .9 1.7 53 1.9 2.4 79
POWDER RIVER PASS 9480 1.3 1.6 81 2.2 2.2 100
SUCKER CREEK 8880 2.4 1.5 160 4.0 2.5 160
TIE CREEK 6870 1.2 -M * 3.6 2.2 164
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Basin wide percent of average 106 130
BELLE FOURCHE
BLIND PARK 6890 1.5 1.9 79 3.1 2.0 155
NORTH RAPID CREEK 6130 .9 -M * 2.0 -M *
WARREN PEAK 6520 .8 1.9 42 2.7 1.6 169
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Basin wide percent of average 61 161
UPPER N. PLATTE RIVER
COLUMBINE 9400 1.4 2.1 67* 4.0 3.1 129
DIVIDE PEAK 8800 2.4 2.7 89 3.5 3.7 95
ELK RIVER 8700 .3 .8 38* 3.2 2.8 114
JOE WRIGHT 10120 3.3 3.8 87 4.8 4.2 114
NORTH FRENCH CREEK 10100 2.7 3.1 87 4.1 2.9 141
OLD BATTLE 10000 3.2 4.5 71 5.1 4.1 124
SOUTH BRUSH CREEK 8400 .5 .8 62* 1.9 2.8 68
TOWER 10500 5.6 7.4 76 5.9 5.0 118
WEBBER SPRINGS 9200 1.5 2.8 54* 4.2 3.9 108
WILLOW CREEK PASS 9540 2.0 1.4 143 2.4 2.2 109
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Basin wide percent of average 78 113
LOWER N. PLATTE - SWEETWATER - LARAMIE
BROOKLYN LAKE 10240 1.7 2.8 61* 3.3 2.9 114
CASPER MTN. 7900 2.8 1.8 156* 3.2 3.0 107
DEADMAN HILL 10220 3.7 1.9 195* 3.3 2.9 114
DEER PARK 9700 .0 -M * .0 -M *
LAPRELE CREEK 8320 1.3 1.2 108 2.3 1.8 128
RENO HILL 8400 2.0 2.1 95 2.3 3.2 72
ROACH 9700 1.8 2.0 90 3.2 3.3 97
SAND LAKE 10080 4.2 4.2 100 4.8 3.2 150
SOUTH PASS 9040 2.5 3.1 81 3.6 2.7 133
WINDY PEAK 7840 .8 .6 133* 2.0 1.5 133
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Basin wide percent of average 106 114
LITTLE SNAKE RIVER
BATTLE MOUNTAIN 7440 .0 .8 0* 3.2 2.3 139
DIVIDE PEAK 8800 2.4 2.7 89 3.5 3.7 95
OLD BATTLE 10000 3.2 4.5 71 5.1 4.1 124
SANDSTONE RS 8150 .0 1.2 0* 3.2 2.3 139
WHISKEY PARK 8950 1.5 3.1 48 4.1 2.6 158
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Basin wide percent of average 58 127
UPPER GREEN RIVER
BIG SANDY OPENING 9100 1.7 1.1 155* 2.9 2.1 138
BLIND BULL SUM 8650 1.8 3.2 56 2.1 2.7 78
EAST RIM DIVIDE 7930 .9 .8 112* 1.0 2.0 50
ELKHART PARK G.S. 9400 1.5 1.3 115* 2.2 2.1 105
GROS VENTRE SUMMIT 8775 -M 1.6 * -M 2.1 *
KENDALL R.S. 7740 1.3 .4 325* 2.3 2.0 115
LOOMIS PARK 8240 1.1 1.0 110* 1.7 2.4 71
NEW FORK LAKE 8340 .7 .3 233* 1.6 1.9 84
SNIDER BASIN 8250 .0 .5 0* 1.1 2.0 55
SPRING CREEK DIVIDE 9000 1.4 2.2 64* 2.2 3.0 73
TRIPLE PEAK 8500 1.9 1.8 106* 2.4 3.8 63
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Basin wide percent of average 98* 81
LOWER GREEN RIVER
HAMS FORK 7840 .1 .3 33* 1.1 1.7 65
HEWINTA 9500 .5 .6 83* 3.7 2.7 137
HICKERSON PARK 9150 2.9 .6 483* 3.8 2.4 158
HOLE-IN-ROCK 9150 1.0 .4 250* 3.3 2.4 138
INDIAN CREEK 9425 1.8 2.5 72* 1.7 3.1 55
KELLEY R.S. 8180 .7 .9 78* 1.5 2.4 63
STEEL CREEK PARK 10100 1.6 2.4 67 4.8 2.8 171
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Basin wide percent of average 112* 114
UPPER BEAR RIVER
BUG LAKE 7950 1.2 1.6 75* 2.1 3.8 55
HAYDEN FORK 9400 .3 1.3 23* 3.3 3.0 110
KELLEY R.S. 8180 .7 .9 78* 1.5 2.4 63
LILY LAKE 9050 1.0 1.3 77* 3.0 3.1 97
MONTE CRISTO 8960 1.7 2.0 85* 2.5 4.2 60
SALT RIVER SUMMIT 7600 .4 .4 100* 2.3 2.2 105
TRIAL LAKE 9960 1.5 2.6 58* 2.6 3.6 72
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Basin wide percent of average 67* 78
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-M = Missing data
* = Data may not provide a valid measure of conditions.
If the Basin wide percent of average value is flagged as potentially
invalid, care should be taken to evaluate if the value is representative
of conditions in the basin.
The SNOW WATER EQUIVALENT Percent of Average represents the snow water
equivalent found at selected SNOTEL sites in or near the basin compared to
the average value for those sites on this day.
The TOTAL PRECIPITATION Percent of Average represents the total precipitation
(beginning October 1st) found at selected SNOTEL sites in or near the basin
compared to the average value for those sites on this day.
Contact your state water supply staff for assistance.
Reference period for average conditions is 1961-90.
Provisional data, subject to revision.
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-M = Missing data
* = Data may not provide a valid measure of conditions.
Units = inches for the Current and Normal Snow Water Equivalent and
Total Precipitation values
If the Basin Index (%) value is flagged as potentially
invalid, care should be taken to evaluate if the value is representative
of conditions in the basin.
The SNOW WATER EQUIVALENT Percent of Median represents the snow water
equivalent found at selected SNOTEL sites in or near the basin compared to
the Median value for those sites on this day.
The TOTAL PRECIPITATION Percent of Average represents the total precipitation
(beginning October 1st) found at selected SNOTEL sites in or near the basin
compared to the Average value for those sites on this day.
Contact your state water supply staff for assistance.
Medians and averages are calculated for the period 1981-2010.
Provisional data, subject to revision.
* Site -- Either: (a) the current value is missing; (b) the median or
average for the day is not available or is zero; or (c) for snow water
equivalent, the median for the day is less than 10% of the maximum
median value for the year.
* Basin - More than half of the sites within the basin are flagged with *,
preventing the calculation of a meaningful basin index.
The basin index is calculated as the sum of the valid current values
divided by the sum of the corresponding medians (for snow water equivalent)
or averages (for precipitation) and the resulting fraction multiplied by 100.